Accelerating inhibitor discovery for deubiquitinating enzymes.

Accelerating inhibitor discovery for deubiquitinating enzymes.
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DOI:
10.1038/s41467-023-36246-0
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发表时间:
2023-02-08
影响因子:
16.6
通讯作者:
Buhrlage, Sara J.
Buhrlage, Sara J.
中科院分区:
综合性期刊1区
文献类型:
--
作者:
Chan, Wai Cheung;Liu, Xiaoxi;Magin, Robert S.;Girardi, Nicholas M.;Ficarro, Scott B.;Hu, Wanyi;Guzman, Maria Tarazona I.;Starnbach, Cara A.;Felix, Alejandra;Adelmant, Guillaume;Varca, Anthony C.;Hu, Bin;Bratt, Ariana S.;DaSilva, Ethan;Schauer, Nathan J.;Jaen Maisonet, Isabella;Dolen, Emma K.;Ayala, Anthony X.;Marto, Jarrod A.;Buhrlage, Sara J.

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Deubiquitinating enzymes (DUBs) are an emerging drug target class of ~100 proteases that cleave ubiquitin from protein substrates to regulate many cellular processes. A lack of selective chemical probes impedes pharmacologic interrogation of this important gene family. DUBs engage their cognate ligands through a myriad of interactions. We embrace this structural complexity to tailor a chemical diversification strategy for a DUB-focused covalent library. Pairing our library with activity-based protein profiling as a high-density primary screen, we identify selective hits against 23 endogenous DUBs spanning four subfamilies. Optimization of an azetidine hit yields a probe for the understudied DUB VCPIP1 with nanomolar potency and in-family selectivity. Our success in identifying good chemical starting points as well as structure-activity relationships across the gene family from a modest but purpose-build library challenges current paradigms that emphasize ultrahigh throughput in vitro or virtual screens against an ever-increasing scope of chemical space. Deubiquitinases (DUBs) are key signaling enzymes, many of which lack selective inhibitors. Chan et al. pair a DUB-focused covalent library to mass spectrometry activity-based protein profiling, leading to selective hits against 23 endogenous DUBs and a first-in-class VCPIP1 probe with nanomolar potency.
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